next step, i look in the portage tree an found in net-mail/vlnx. inside there is vlnx-414e-r2.ebuild, and so i tried to emerge vlnx-414e-r2.ebuild without success
!!! ebuild net-mail/vlnx-414e-r2 not found (possibly blocked by package.mask)

has anybody a tip for me, how to emerge amavis?

it is the last step, then my server will work with the same function as i have installed it with suse linux